The MTA has asked social media companies to take down videos glamorizing subway surfing. It’s also promoted public service announcements telling people to “Ride inside, stay alive,” in voices of local teens. More than 300,000 New York City school children use the subway to get to and from school each day.

Train had been taken from layover track at station; MTA exploring new security measures to prevent further incidents

More than a dozen New Yorkers, many young boys, have been killed or badly injured in recent years while attempting to climb and surf trains.